WASHINGTON, Dec 23 (Reuters) – Alphabet unit Waymo said on ​Tuesday it will expand ‌first responder engagement, improve its emergency ‌response protocols and roll out updates to allow its vehicles to navigate intersections ⁠more decisively, ‌following incidents of stalled Waymo robotaxis after a ‍San Francisco power outage.

Waymo paused service Saturday evening following a ​fire at a PG&E ‌substation that knocked out power to roughly one-third of the city, affecting about 130,000 residents and forcing some businesses ⁠to close temporarily.

A ​California regulator said ​on Monday it was looking into incidents in ‍which ⁠Waymo’s robotaxis stalled in parts of San Francisco because ⁠of the outage.

(Reporting by Kanishka ‌Singh in Washington; Editing by ‌Christian Schmollinger)